基于相似性原則的配電網(wǎng)開關(guān)機(jī)械卡澀試驗(yàn)裝置研制
徐麗蘭1,楊振中2,郭謀發(fā)1
1 福州大學(xué) 電氣工程與自動(dòng)化學(xué)院,福建 福州 350108;
2 福建省石獅電力有限責(zé)任公司,福建 泉州 362700
摘 要:以LabVIEW和Matlab為平臺(tái),研制了一套配電網(wǎng)開關(guān)機(jī)械卡澀試驗(yàn)裝置,利用振動(dòng)信號(hào)識(shí)別開關(guān)機(jī)械卡澀故障。核心算法為基于相似性原則和小波包分解的綜合辨識(shí)比向量法。配網(wǎng)開關(guān)分、合閘試驗(yàn)數(shù)據(jù)分析結(jié)果與開關(guān)實(shí)際狀態(tài)相吻合,表明該裝置對(duì)于判斷配電網(wǎng)開關(guān)是否機(jī)械卡澀故障具有良好的效果。
關(guān)鍵詞:相似性原則;配電網(wǎng)開關(guān)機(jī)械卡澀;綜合辨識(shí)比向量 中圖分類號(hào):TM564 文獻(xiàn)標(biāo)識(shí)碼:B 文章編號(hào):1007-3175(2013)08-0044-05
Research of Switch Mechanical Structure Fault Testing Apparatus for Distribution System Based on Similarity Principle
XU Li-lan1,YANG Zhen-zhong2, GUO Mou-fa1
1 College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, China;
2 Shishi Electrical Power Limited Company of Fujian Province, Quanzhou 362700, China
Abstract: This paper designed a set of switch mechanical structure fault testing apparatus for distribution system in the environment of LabVIEW and Matlab. The testing apparatus used vibration signal to identify switch mechanical structure fault. The key algorithm was the integrated identification-rate vector method based on wavelet packet decomposition with similarity principle. The simulative analysis result from field distribution switch on/off signals wave is coincided with the actual state, thus the apparatus can offer satisfying effect for judging distribution switch mechanical structure fault.
Key words: similarity principle; distribution switch mechanical structure fault; integrated identification-rate vector
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